I suppose that a possibility, but I would think my inputs we underpowered rather than overpowered, I am using things like a computer, and small cheap cd players, xm radio, etc. The wire sounds like a good possibility too, I am going to get some new speaker wire and try it. A friend also told me the the windings or resistors in the speakers can fail or short over time, I was thinking it might be a common problem, thats why I got on the forum.